buildsys build logs

[trebonian]

Buildsys spawns a "docker buildx build" for each package. When docker build runs interactively, it writes a log trace to stdout and stderr. I can't find how to redirect the buildx output to a log file. It would be nice to do it for a given package. Is there a parameter or an Env argument I can give to redirect the buildx output to a file?

[bcressey]

There's no way to do that currently, but there's a close equivalent for successful builds: the output log maintained by cargo, which you can find under the target directory at the root of the checkout.

For example, for the kernel-6.1 package, the logs can be found here:

target/*/debug/build/kernel-6_1-*/output

Because it's done by cargo it uses the crate name of the package, which is usually the same as what's in the directory tree. The exceptions are packages with dots in the name, where the dot is replaced with an underscore. Hence kernel-6.1 becomes kernel-6_1 in the case above.

[trebonian]

Is there a way to force the "—verbose" flag to the cargo build being used by twoliter? Even better if I could do this for the "build-package" task in the cargo make used by twoliter. I would like to tail the build log for particular packages while its building...